/*
 *  Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "suppression_params.h"

#include "checks.h"

namespace webrtc {

    SuppressionParams::SuppressionParams(
            NsConfig::SuppressionLevel suppression_level) {
        switch (suppression_level) {
            case NsConfig::SuppressionLevel::k6dB:
                over_subtraction_factor = 1.f;
                // 6 dB attenuation.
                minimum_attenuating_gain = 0.5f;
                use_attenuation_adjustment = false;
                break;
            case NsConfig::SuppressionLevel::k12dB:
                over_subtraction_factor = 1.f;
                // 12 dB attenuation.
                minimum_attenuating_gain = 0.25f;
                use_attenuation_adjustment = true;
                break;
            case NsConfig::SuppressionLevel::k18dB:
                over_subtraction_factor = 1.1f;
                // 18 dB attenuation.
                minimum_attenuating_gain = 0.125f;
                use_attenuation_adjustment = true;
                break;
            case NsConfig::SuppressionLevel::k21dB:
                over_subtraction_factor = 1.25f;
                // 20.9 dB attenuation.
                minimum_attenuating_gain = 0.09f;
                use_attenuation_adjustment = true;
                break;
            default:
                RTC_NOTREACHED();
        }
    }

}  // namespace webrtc
